Abstract
The constituent phases, the microstracture, and the mechanical properties of a series of Fe87-xTi7Zr6Bx (x = 0, 2, 4, 6, 8, 10, and 12) alloys produced by copper mold casting were investigated. Partial substitution of iron by boron in the Fe87Ti7Zr6 ultrafine eutectic alloy induces phase/microstructural evolution and simultaneously changes the mechanical properties. In the composition range of 2 ≤ x ≤ 6, the typical lamellar structure slightly changes into a spherical cellular-type eutectic. For 8 ≤ x ≤ 12, multiphase composites containing a glassy phase form. The ultrafine eutectic composites exhibit a high compressive strength of -2.9-3.1 GPa and a distinct plasticity of -2-8%, whereas the glassy matrix composites show a high strength of -3.1-3.3 GPa but no observable macroscopic plasticity before failure. These findings reveal that the plasticity of heterogeneous multiphase composites is strongly related to the length scale variables and the crystallinity of the constituent phases.
Similar content being viewed by others
References
M.C. Flemings: Solidification Processing (McGraw-Hill, New York, 1974).
M. Dao, L. Lu, R.J. Asaro, J.T.M. De Hosson, and E. Ma: Toward a quantitative understanding of mechanical behavior of nanocrystal-line metals. Acta Mater. 55, 4041 (2007).
C.A. Schuh, T.C. Hufnagel, and U. Ramamurty: Mechanical behavior of amorphous alloys. Acta Mater. 55, 4067 (2007).
G. He, J. Eckert, W. Loser, and L. Schultz: Novel Ti-base nanostructure-dendrite composite with enhanced plasticity. Nat. Mater. 2, 33 (2003).
J.M. Park, T.E. Kim, S.W. Sohn, D.H. Kim, K.B. Kim, W.T. Kim, and J. Eckert: High strength Ni-Zr binary ultrafine eutectic-dendrite composite with large plastic deformability. Appl. Phys. Lett. 93, 031903 (2008).
J.W. Qiao, S. Wang, Y. Zhang, P.K. Liaw, and G.L. Chen: Large plasticity and tensile necking of Zr-based bulk metallic glass matrix composites synthesized by the bridgman solidification. Appl. Phys. Lett. 94, 151905 (2009).
D.C. Hofmann, J.Y. Suh, A. Wiest, G. Duan, M.L. Lind, M.D. Demetrious, and W.L. Johnson: Designing bulk metallic glass matrix composites with high toughness and tensile ductility. Nature 451, 1085 (2008).
S. Pauly, S. Gorantla, G. Wang, U. K. Kühn, and J. Eckert: Transformation-mediated ductility in CuZr-based bulk metallic glasses. Nat. Mater. 9, 473 (2010).
D.V. Louzguine, H. Kato, L.V. Louzguina, and A. Inoue: High-strength binary Ti-Fe bulk alloys with enhanced ductility. J. Mater. Res. 19, 3600 (2004).
L. Shi, H. Ma, T. Liu, J. Xu, and E. Ma: Microstructure and compressive properties of chill-cast Mg-Al-Ca alloys. J. Mater. Res. 21, 613 (2006).
J.M. Park, N. Mattern, U. Kiihn, J. Eckert, K.B. Kim, W.T. Kim, K. Chattopadhyay, and D.H. Kim: High strength bulk Al-based bimodal ultrafine eutectic composite with enhanced plasticity. J. Mater. Res. 24, 2605 (2009).
H.K.D.H. Bhadeshia and R.W.K. Honeycombe: Steel: Microstructure and Properties, 3rd ed. (Butterworth-Heinemann Press, Oxford, UK, 2006).
B. Shen, H. Men, and A. Inoue: Fe-based bulk glassy alloy composite containing in situ formed α-(Fe, Co) and (Fe, Co)23B6 microcrystalline grains. Appl. Phys. Lett. 89, 101915 (2006).
S.F. Guo, L. Liu, N. Li, and Y. Li: Fe-based bulk metallic glass matrix composite with large plasticity. Scr. Mater. 62, 329 (2010).
K. Werniewicz, U. Kiihn, N. Mattern, B. Bartusch, J. Eckert, J. Das, L. Schultz, and T. Kulik: New Fe-Cr-Mo-Ga-C composites with high compressive strength and large plasticity. Acta Mater. 55, 3513 (2007).
R. Li, G. Liu, M. Stoica, and J. Eckert: FeCo-based multiphase composites with high strength and large plastic deformation. Intermetallics 18, 134 (2010).
J.M. Park, S.W. Sohn, T.E. Kim, K.B. Kim, W.T. Kim, and D.H. Kim: Nanostructure-dendrite composites in the Fe-Zr binary alloy system exhibiting high strength and plasticity. Scr. Mater. 57, 1153 (2007).
J.M. Park, K.B. Kim, M.H. Lee, W.T. Kim, J. Eckert, and D.H. Kim: High strength ultrafine eutectic Fe-Nb-Al composites with enhanced plasticity. Intermetallics 16, 642 (2008).
M.L. Lee, Y. Li, and C.A. Schuh: Effect of controlled volume fraction of dendritic phases on tensile and compressive ductility in La-based metallic glass. Acta Mater. 52, 4121 (2004).
D.C. Hofmann, J.Y. Suh, A. Wiest, M.L. Lind, M.D. Demetrious, and W.L. Johnson: Development of tough, low density titanium-based bulk metallic glass matrix composites with tensile ductility. Proc. Natl. Acad. Sci. U.S.A. 105, 20136 (2008).
J.M. Park, S.W. Sohn, D.H. Kim, K.B. Kim, W.T. Kim, and J. Eckert: Propagation of shear bands and accommodation of shear strain in the Fe56Nb4Al40 ultrafine eutectic-dendrite composite. Appl. Phys. Lett. 92, 091910 (2008).
D.V. Louzguine, H. Kato, and A. Inoue: High-strength hypereu-tectic Ti-Fe-Co bulk alloy with good ductility. Philos. Mag. Lett. 84, 359 (2004).
C. Fan, R.T. Ott, and T.C. Hufnagel: Metallic glass matrix composite with precipitated ductile reinforcement. Appl. Phys. Lett. 81, 1020 (2002).
J.M. Park, D.H. Kim, K.B. Kim, E. Fleury, M.H. Lee, W.T. Kim, and J. Eckert: Enhancement of plasticity in Ti-rich Ti-Zr-Be-Cu-Ni-Ta bulk glassy alloy via introducing the structural inhomoge-neity. J. Mater. Res. 23, 2984 (2008).
H. Ma, L.L. Shi, J. Xu, and E. Ma: Chill-cast in situ composites in the pseudo-ternary Mg-(Cu, Ni)-Y glass-forming system: Microstructure and compressive properties. J. Mater. Res. 22, 314 (2007).
C.C. Hay, C.P. Kim, and W.L. Johnson: Microstructure controlled shear band formation and enhanced plasticity of bulk metallic glasses. Phys. Rev. Lett. 84, 2901 (2000).
J.M. Park: Mechanical behavior of bulk nano-/ultrafine structured composites. Ph.D. thesis, Yonsei University, Seoul, Korea, 2008.
JCPDFWIN: Version 2.2 (JCPDS, International Center for Diffraction Data, Newton Square, PA, 2001).
H. Okamoto: Phase Diagrams for Binary Alloys (ASM International, Materials Park, OH, 2000).
J.M. Park, D.H. Kim, K.B. Kim, and W.T. Kim: Deformation-induced rotational eutectic colonies containing length-scale heterogeneity in an ultrafine eutectic Fe83Ti7Zr6B4 alloy. Appl. Phys. Lett. 91, 131907 (2007).
T.H. Courtney: Mechanical Behavior of Materials (McGraw-Hill, Boston, MA, 1998).
J.H. Han, K.B. Kim, S. Yi, J.M. Park, D.H. Kim, S. Pauly, and J. Eckert: Influence of a bimodal eutectic structure on the plasticity of a (Ti70.5Fe29.5)9iSn9 ultrafine composite. Appl. Phys. Lett. 93, 201906 (2008).
D.V. Louzguine, L.V. Louzguina, H. Kato, and A. Inoue: Investigation of Ti-Fe-Co bulk alloys with high strength and enhanced ductility. Acta Mater. 53, 2009 (2005).
L. Fu, J. Yang, Q. Bi, and W. Liu: Enhanced ductility of dendrite-ultrafine eutectic composite Fe3B alloy prepared by self propagating high temperature synthesis. Adv. Eng. Mater. 11, 194 (2009).
Acknowledgments
This work was supported by Defense Acquisition Program Administration (DAPA) and Agency for Defense Development (ADD), and also supported by the Global Research Laboratory Program of Korea Ministry of Science and Technology, and by the Center for Advanced Materials Processing (CAMP) of the 21st Century Frontier R&D Program of the Korea Ministry of Knowledge Economy. Stimulating discussions with A. Schlieter, E. Fleury, G. Wang, J.H. Han, M.H. Lee, O. Shuleshova, R. Li, S. Pauly, and W.T. Kim are gratefully acknowledged.
Author information
Authors and Affiliations
Additional information
This author was an editor of this journal during the review and decision stage. For the J MR policy on review and publication of manuscripts authored by editors, please refer to http://www.mrs. org/jmr_policy
Rights and permissions
About this article
Cite this article
Park, J.M., Hyang Kim, D., Kim, K.B. et al. Evolution of constitution, structure, and mechanical properties in Fe-Ti-Zr-B heterogeneous multiphase composites. Journal of Materials Research 26, 365–371 (2011). https://doi.org/10.1557/jmr.2010.50
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/jmr.2010.50